JPH0331002A - Transporter for photosensitive print plate - Google Patents

Abstract

PURPOSE:To simplify transport and storage of photosensitive print plates, by piling up and loading a plurality of photosensitive print plates on a board having casters capable of changing relative highness and foot plated, and applying mutual connecting end plates having those print plate interposed therebetween. CONSTITUTION:A plurality of photosensitive print plates 1 having photosensitive resin on a supporting body are set on a table 10 in such a state that the supporting body of respective adjacent print plates 1 and a photosensitive resin surface are brought in direct contact with each other without any guard sheet. The circumference of each print plate 1 group is group is fastened by bolts 14 and nuts 16 so that respective end plates 12 applied to both sides thereof do not touch the print plates 1. On the other hand, the table 10 on each print plate 1 group is set, is moved along a bottom surface by casters 18. At the time of plate making work, the bolts 14 are loosened, and respective print plates 1 are taken out one by one, placed in a plate making machine. On the other hand, the casters 18 are so constituted as being capable of changing their relative heights to foot plated which are not shown in figure.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a conveying device for photosensitive printing plates.

[Conventional technology]

Generally, a photosensitive printing plate is one in which a photosensitive resin is formed on a support such as an aluminum plate. This photosensitive printing plate is usually quite large, about 1 m x 1 m, and weighs 500 to 1000 g per sheet, which is quite heavy.

Conventionally, when storing or transporting photosensitive printing plates, an appropriate number of plates were stacked horizontally with interleaf paper interposed therebetween.

However, using a mount to prevent scratches,
Workability is extremely poor when stacking and taking out.

Therefore, in recent years, as shown in FIG. 13, direct photosensitive printing plates 1.1. ...Also overlap each other horizontally, arrange rigid end plates 2, 2 on both sides of the mating, and bolt 3.
,3. ...The pallets are fastened more tightly to prevent the photosensitive printing plate from shifting due to vibrations and damaging the photosensitive surface.

In this case, one end plate 2 is used as a pallet stand, and at least one side between both surfaces of the photosensitive printing plate 1.1 group and the end plates 2, 2 is covered with cardboard to prevent damage. has been established. Furthermore, the number of stacked sheets is usually 700 to 15.
For example, 1,000 sheets weighs between 500 kg and 1,000 kg, so a forklift is used for transportation.

[Problem to be solved by the invention]

However, when using the above-mentioned end plates and stacking photosensitive printing plates horizontally, the first problem is that during storage,
It requires a large installation area of 1 m x 1 m or more. Second, when a group of 700 to 1,500 printing plates that has been transported near a plate-making machine (image forming machine, exposure machine) is to be actually applied to the plate-making machine, it is necessary to use a After removing the bolt 3, the photosensitive resin surface must be carefully propped up on a plate-making table, and then the entire sheet must be taken out and used, resulting in poor work efficiency. Moreover, it requires careful handling.Furthermore, even around 50 sheets are quite heavy, which puts a heavy burden on the worker.Furthermore, in order to take out each 50 sheets, for example, when stacking 50 sheets in advance, 50 sheets of corrugated cardboard must be stacked together. It must be inserted between sheets, and its use increases costs.

Thirdly, in relation to the second point, a group of 700 to 1,500 sheets must be transported by forklift and then manually transported by workers before being sent to a plate-making machine, making the logistics less smooth. .

Fourth, if the end plates 2, 2 are not fastened sufficiently, the photosensitive resin surface will easily be damaged if a certain printing plate is displaced during transportation or the like. In addition, since the paper is not interleaved, if there is small dust between the printing plates, if the end plates are tightly tightened, the dust will easily damage them. Moreover, even before tightening, the lower printing plate is subject to the load of the upper printing plate.
Easy to get hurt.

Therefore, the inventors of the present invention have developed a system that occupies a small planar area when installed, allows the transported printing plates to be taken out as they are, and is extremely superior in terms of workability and efficiency. For the purpose of providing a transportation device with almost no
In No. 4, a large number of photosensitive printing plates having a photosensitive resin on a support are brought into direct contact with each other and interposed between the end plates without a mount, and the end plates are fastened to form the photosensitive printing plate. We have proposed a transportation device in which a group of printing plates is fixed and is placed substantially vertically on a portable table.

However, in such a configuration, for portability,
If the casters are fixedly attached to the bottom of the stand, if the overall weight is not very heavy or if the distance to be transported is short,
It is possible to transport the transport device by pushing it forward manually, but on the other hand, when transporting a large number of photosensitive printing plates, if the entire plate is heavy or the transport distance is long, manual transport is difficult.

Therefore, in the latter case, the above-mentioned transport device is placed directly on a truck and fixed to the loading platform with lobes, or the transport device is fixed to a pallet and then transported by a forklift or truck.

However, with this mode of transportation, the casters wobble and the stability of the transportation device is poor, and even if the casters are stopped during transportation or storage, the contact area is small. Poor stability.

Therefore, the main purpose of the present invention is to improve stability when transporting a large number of photosensitive printing plates when the whole is heavy or when the transport distance is long, and when transporting or transporting by forklift or truck, or when storing. excellent in
Moreover, it is an object of the present invention to provide a transportation device that can be easily transported within a printing factory.

[Means to solve the problem]

The above problem was solved by placing a large number of photosensitive printing plates having photosensitive resin on a support in an overlapping state on a stand with casters and a footrest for installation on the floor at the bottom, and The photosensitive printing plates are interposed between the plates and the end plates are fastened together to fix the group of photosensitive printing plates, and at least one of the casters and the footrest is movable up and down, and one of the casters and the footrest is movable up and down before and after movement. This can be solved by configuring the structure so that when the other is in contact with the floor, the other is evacuated from the floor.

[Effect]

In the present invention, the relative height positions of the casters and the footrest can be changed.

Therefore, when transporting by forklift or truck is required, or when storing, if the bottom of the footrest is lower than the bottom of the casters, the presence of the footrest will provide space for the fork to be inserted when transporting by forklift. It also ensures good stability when placed on the bed of a truck, and also provides better stability during long-term storage than when using casters in a printing factory.

On the other hand, when transporting the product within a printing factory, the bottom of the casters should be lower than the bottom of the footrest.
Can be carried by hand due to the presence of casters.

Although the present invention is not limited to the manner in which each photosensitive printing plate is placed on the conveying device, if a group of photosensitive printing plates is placed on a table without interleaving paper, it is possible to insert the interleaving paper. There is no need to remove the mount when loading and unloading the printing plate, improving work efficiency. In addition, even without a mount, when a group of photosensitive printing plates is placed essentially vertically on a table, their lower end surfaces are in contact with the table due to their own weight, so printing can be performed from left to right and upward in the plane direction. There is almost no displacement of the plate, and damage is prevented. As a result, even if the end plates are tightened somewhat loosely, the printing plate will not move easily, so it will not be damaged. Enhances scratch prevention effect.

Furthermore, when the printing plate group is placed on the table substantially vertically,
- The printing plates have a large outer shape of about 1 m x 1 m, but are thin at about 2 to 3 mm, so even if 1000 sheets are stacked, the total thickness is 200 to 300 cm, and the installation space is small. Moreover, when a group of printing plates is transported vertically to the plate-making machine, the plate-making tools can be taken out one by one and placed on the plate-making machine, greatly improving work efficiency from transport to plate-making machine. do.

[Specific structure of the invention]

The present invention will be explained in more detail below.

FIG. 9 shows an embodiment of the first mounting table, in which a photosensitive printing plate 1 having a photosensitive resin on a support is placed without interleaving paper.
Each adjacent printing plate is placed on a multi-plate stand 10 with its support and photosensitive resin surface in direct contact with each other.

Such a group of photosensitive printing plates 1.1... has end plates 12, 12 applied on both sides thereof, and is fastened with bolts 14 and nuts 16 around the edges of these end plates 12°12 that do not collide with the printing plate 1. 1, - as an embodied thing
It is installed on O.

The stand 10 can be moved along the floor by casters 18 fixed to its bottom.

Once the printing plates 1.1... group are installed on the table IO in this way, move the casters 18 to near the plate making machine (not shown).
After the bolts 14, 14... You can loosen it, take out each sheet, and put it through a plate-making machine.

On the other hand, when taking out each printing plate to a plate making machine, printing plate 1. l...For the stability of the group, as shown in FIGS. 10 to 12, which are examples of the second mounting table, they are placed against one inclined end plate 12A in an overlapping state. It is preferable to do so.

In the examples of FIGS. 10 to 12, the end plate 12A is the bottom plate 2.
A bottom base plate 24 is fixed on the bottom plate 2o via a spacer 26, and is erected while being inclined upwardly and reinforced by a reinforcing member 22, and substantially perpendicular to the end plate 2A. Further, an appropriate number of casters 28, four in the illustrated example, are attached to the bottom plate 2o.

Further, after the required number of printing plates 1.1... are placed on the end plate 12A, the end plate 12B is placed on the printing plate l whose surface is located at the side, and then the end plate 12A is placed.

12B, a long bolt 30° 30.
... to fix the printing plates 1.1... group.

Furthermore, in order to move these to near the plate making machine, hand handles 3 are provided along with the aforementioned casters 28.
2 is installed. Since this handle 32 may get in the way during storage, it is preferable to make it removable by inserting and removing a pin 36 from a receiver 34 fixed to the bottom plate 20, etc., as shown in FIG. 11. . The attachment/detachment means is not limited to this example.

In the second embodiment shown in FIGS. 1O to 12, the printing plate 1
．． 1... stack the groups and lean them against the end plate 12A,
After fastening the end plates 12A and 12B with bolts 30,
Hold the handle 32 and move to a predetermined position. When taking it out, after removing the bolt 30 and removing the end plate 12B,
All you have to do is take out the printing plate one by one, knowing the surface. In this case, the printing plate 1 has an angle θ, preferably θ=90
Since it leans against the end plate 12A at an angle of inclination of (less than) 60 degrees, it does not fall over during removal and is stable. Therefore, there is an advantage that the photosensitive resin surface will not be scratched and damaged during removal.

By the way, as mentioned above, the presence of casters 18 or 28 is extremely effective when transporting the printer within a printing factory.

However, this type of photosensitive printing plate is normally supplied to a printing factory from a master plate manufacturer, and therefore the master plate manufacturer supplies the photosensitive printing plate to the printing factory by truck transportation. Further, it is often necessary to palletize and move a large number of photosensitive printing plates within a master plate manufacturer or a printing factory. In such case, as stated above,
On the contrary, the presence of caster 1B or 28 becomes a hindrance.

Therefore, in the present invention, as shown in FIGS. 1 to 8, for example, casters 28 (or 18) and a footrest 3 for storage, transportation by forklift or truck
The relative height positional relationship with 8 can be changed.

In the first position adjustment device shown in FIGS. 1 to 6, the caster 2
8, the height position of the footrest 38 is changed instead of being fixed.

That is, the footrest 38 is divided into a fixed footrest 38A and a movable footrest 38B.
These are fixed by a first bolt 40 and a second bolt 42, and the first bolt 4
The insertion hole 38a of 0 is an elongated hole, and the insertion hole of the second bolt 42 is a circular hole 38b.

In a transport device equipped with such a first position adjustment device, when transporting by casters 28, as shown in FIGS. Position it higher up.

In addition, since the presence of the casters 28 becomes a hindrance during storage, transportation by forklift, or transportation by truck, the first bolt is loosened and the movable footrest 38B is moved as shown in FIGS. 2, 5, and 6. It is relatively moved downward along the insertion hole 38a, so that its bottom surface protrudes below the bottom surface of the caster 28. After that, the second bolt 42 is inserted into the circular hole 38b.
, and tighten this second bolt 42 and first bolt 40. As a result, the stand on which the first group of photosensitive printing plates is placed can be supported by the footrest 38.

Thereby, a space for inserting a fork of a forklift (not shown) can be formed. It also creates a space for wires to pass through when lifting with a crane. The entire transporting device on which the group of photosensitive printing plates is mounted can be transported or transported by a forklift or a truck. On the other hand, when it becomes necessary to move the transport device that has been transported, transported, or stored in the printing factory in this way to another location, conversely, the movable footrest 38B is retracted and the casters are moved from the bottom of it. After positioning the bottom of 28 downward, a worker can manually transport it within the factory.

FIGS. 7 and 8 show an example of the second position adjustment device, in which the footrest 38 is fixed in position and the casters 28 are movable up and down instead.

That is, the caster 28 is held by a holder 28A, and its holding shaft 28B is movable along a guide hole 28D formed in a support 28C fixed to the bottom plate 20.

In this example, when the casters 28 are used for transportation, the casters 28 are made to protrude below the footrest 38, as shown by solid lines in FIG. The footrest 38 is raised and its bottom surface is retracted above the bottom surface of the footrest 38.

On the other hand, in the present invention, both the footrest 38 and the casters 28 may be movable up and down, as can be easily guessed. Further, the vertical movement means is not limited to the structure of the above example.

Photosensitive printing plates are generally produced by coating a photosensitive composition on a support such as an aluminum plate, irradiating it with active light such as ultraviolet rays through a negative image, and polymerizing or crosslinking the irradiated areas to form a phenomenon liquid. Insolubilize and elute the non-irradiated areas into the phenomenon liquid, making each area an image area that repels water and accepts oil-based ink, and a non-image area that accepts water and repels oil-based ink. It is obtained by

In this case, the photosensitive composition is particularly negative-type P
For S plates, diazo resins such as condensates of P-diazodiphenylamine and formaldehyde are widely used.

However, this diazo resin is not used alone, but is usually used in combination with at least a binder resin.

Furthermore, as the photosensitive resin, quinodiazide resin is typically used in positive PS plates.

As the binder resin, polymers having phenolic OH groups and carboxyl groups, such as novolac resins, polyparahydroxystyrene, and styrene/maleic anhydride copolymers, are mainly used.

In addition, photopolymerizable, photocrosslinkable photosensitive compositions, etc. can also be used.

In any case, the printing plate in which the above-mentioned photosensitive resin is provided on a support, such as an aluminum plate, is manufactured by processes such as degreasing of the support, sanding, electrolytic polishing, anodizing, water washing, Once a series of processes such as drying, photosensitive liquid application, cutting, and surface inspection are completed, as described above, the product is placed on a transport device with casters and transported to its destination.

〔Effect of the invention〕

As described above, according to the present invention, when transporting a large number of photosensitive printing plates, when the whole is heavy or the transport distance is long, it is possible to stabilize the image when transporting or transporting by forklift or truck, or when storing. It has excellent properties and can be easily transported within a printing factory.

[Brief explanation of drawings]

Figure 1 is an example of using the first position adjustment device, and is a schematic front view of the state when it is transported by casters, Figure 2 is a schematic front view of the state when it is being stored, and Figure 3 is a schematic front view of the state when the footrest is being evacuated. Figure 4 is a front view of the main part, Figure 4 is a side view of the main part, Figure 5 is a front view of the main part when the footrest is protruded, Figure 6 is a side view of the main part, and Figure 7 is a front view of the main part of the second position adjustment device. , Fig. 8 is a side view thereof, Fig. 9 is a front view of the first example of the mounting table of the present invention, Fig. 1O is a perspective view of the second mounting table, Fig. 11 is a side view, and Fig. 12 is the viewing direction. FIG. 13 is a perspective view of a conventional example. ■...Photosensitive printing plate, IO... stand, 12.12A. 12B... End plate, 14... Bolt, 24... Bottom plate, 28... Caster 28A... Holder, 28
D guide hole, 30...bolt, 32...handle, 38...footrest, 38A...fixed footrest, 38B...
・Movable footrest. Figure 1 Figure 1 Figure 1 Figure Figure 1 Figure Figure 1

Claims (1)

[Claims] (1) A large number of photosensitive printing plates having a photosensitive resin on a support are placed one on top of the other on a stand that has casters on the bottom and a footrest for installation on the floor, and the end plate The group of photosensitive printing plates is fixed by interposing the end plates between the casters and the end plates, and at least one of the casters and the footrest is movable up and down, and one of the casters and the footrest is placed on the floor before and after the movement. 1. A photosensitive printing plate conveying device, characterized in that the other side is retracted from the floor surface when the other side is in contact with the other side.